You could do a simple groupby
<http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#orderby--groupby--limitby--distinct--having-orderby_on_limitby-left-cache>
if you don't care which record is retained.
Anthony
On Wednesday, June 8, 2016 at 10:10:33 AM UTC-4, Gael Princivalle wrote:
>
> Hello.
>
> Is there a way to select some rows without duplicates for a specific field
> ?
>
> MODEL:
> db.define_table('products'):
> Field('code', type='string'),
> Field('category_code', type='integer'))
>
> ROWS:
> code / category_code
> A1125 / 3
> C2214 / 2
> D235 / 3
> Z886 / 1
>
> I would like to make a select that give this result:
> code / category_code
> A1125 / 3
> C2214 / 2
> Z886 / 1
>
> Someone have an idea ?
>
> Thanks.
>
>
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to the Google Groups
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
